Train yourself never to put off the word or action for the expression of gratitude.

The destiny of man is to be more and more human.

I look back upon my youth and realize how so many people gave me help, understanding, courage - very important things to me - and they never knew it. They entered into my life and became powers within me.

When man learns to respect even the smallest being of creation...nobody has to teach him to love his fellow man. Compassion for animals is intimately connected with goodness of character, and it may be confidently asserted that he who is cruel to animals cannot be a good man.

The deeper we look into nature, the more we recognize that it is full of life, and the more profoundly we know that all life is a secret and that we are united with all life that is in nature.

It seemed incredible to me, that physical courage should be so commonplace and revered, while moral courage . . . is so rare and despised.

One truth stands firm. All that happens in world history rests on something spiritual. If the spiritual is strong, it creates world history. If it is weak, it suffers world history.